To ensure high-quality wireless charging power transmitters, the Wireless Power Consortium (WPC) released the Qi 1.3 specification with the extended power profile. This new specification has created demand for high-security silicon authentication devices for full-service support.
In response, Microchip Technology is announcing the new industrial-grade TrustFLEX ECC608 and automotive-grade Trust Anchor TA100. This is combined with Microchip's secure key provisioning services for Qi 1.3 power transmitters.
The new offering is a complete secure storage subsystem that includes key provisioning for automotive and consumer systems.
The Qi 1.3 specification now requires the addition of a secure storage subsystem with secure key provisioning, including X.509 certificates to cryptographically verify the source and quality of the certified power transmitter. When a receiver (such as a cell phone) is placed on a Qi 1.3 power transmitter, it can initially accept a 5W charge or no charge at all.
Then, after a successful X.509-based ECC authentication, proving that the charger is an approved device and “does no harm,” the phone will safely accept a 15W charge, significantly reducing charging time.
Microchip is now a WPC-licensed manufacturing Certification Authority (CA), not only offering pre-configured secure storage subsystem solutions that reduce complexity and development time, but also reducing the technical barrier to entry when dealing with the entire key ceremony with the WPC root authority certificate. This is on behalf of Microchip customers.
By providing a complete certified reference design including application MCU, Qi 1.3 software stack, secure storage subsystems with supporting cryptographic library, and provisioning services for automotive and consumer applications, Microchip is a one-stop shop for Qi solutions 1.3.
“Our WPC secure storage subsystem solutions demonstrate Microchip’s continued commitment to facilitating high-volume implementation of next-generation security architectures in embedded systems,” said Nuri Dagdeviren, VP of Microchip’s Security Products Business Unit. . “We work every day to lower the barrier to entry for this complex but essential technology for our customers in the wireless charging market.”
